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Jurnal Natural
Published by Universitas Syiah Kuala
ISSN : 14118513     EISSN : 25414062     DOI : https://doi.org/10.24815/jn
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Energy Immunology & microbiology Neuroscience Physics
Jurnal Natural (JN) aims to publish original research results and reviews on sciences and mathematics. Jurnal Natural (JN) encompasses a broad range of research topics in chemistry, pharmacy, biology, physics, mathematics, statistics, informatic and electronic.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 457 Documents
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Genetic diversity of local sweet potato cultivars (Ipomoea batatas [L.] Lam.) from Bulungan, North Kalimantan based on morphological characters OKTAVIANINGSIH, LINDA; FITRIANI, FITRIANI; HENDRA, MEDI; ARIF, MUHAMMAD FAUZI
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.40568

Abstract

Indonesia is one of the centers of sweet potato diversity worldwide. Sweet potatoes have the potential to be developed for food consumption. This research aims to determine the diversity of sweet potato cultivars, their morphological characteristics, and the relationships between local sweet potato cultivars in Bulungan Regency, North Kalimantan. The local sweet potato cultivars were selected using purposive sampling with the exploration method. The morphological characterization of the samples is based on IBPGR (International Board for Plant Genetic Resources) standards. Cluster analysis was conducted to identify the relationships using MVSP software version 3.1. The research identified 27 local sweet potato cultivars in Bulungan Regency. Morphological characterization revealed 41 characters that can differentiate each local sweet potato cultivar. The most influential characteristics include leaf shape, flower surface texture, the position of the stigma, flower surface color, back petal color, center shape and the number of lobes, primary leaf vein color, lobe type, main leaf bone color, stem internode length, and plant type. A flower shape that had not been discovered before, a pentagonal shape with curves, was identified. Cluster analysis divided the cultivars into two major groups with a coefficient range of 0.593 to 0.888 (59.3 to 88.8%). Cluster A consisted of one member, LK-7 (purple sweet potato), while Cluster B consisted of several subgroups with 26 local cultivars. The people of Bulungan Regency use these local cultivars for food, animal feed, and medicinal purposes.
Green tea (Camellia sinensis L.) potential to liver of hyperuricemia rats (Rattus norvegicus) fed with high purine diet NUGRAHENI, PUTRANTY WIDHA; MAHDI, CHANIF; RAHMAWATI, FITRIA; ANALITA, RIZKI NUR
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.29599

Abstract

Uric acid is produced in tissues containing xanthine oxidases, like the small intestine and liver, as involved in the purine metabolism of adenine and guanine. High uric acid levels cause damage to cell membranes due to the lipid peroxidase chain reaction. Foods containing high purines will activate the xanthine oxidase (XOD), causing an increase in free radicals. Free radicals attack polyunsaturated fatty acids (PUFA) by forming lipid peroxides. PUFA molecules contain multiple double bonds, which make them susceptible to oxidation by reactive oxygen species (ROS), such as free radicals. PUFA will be broken into simple compounds such as pentane, ethane, and aldehydes, leading to malondialdehyde (MDA) formation. High MDA levels illustrate the process of cell membrane oxidation leading to cell membrane damage. Hyperuricemia is often treated using synthetic drugs such as allopurinol; however, it can cause side effects. Some people will choose medicinal plants with minimal side effects. Green tea (Camellia sinensis L.) contains many polyphenol antioxidants, especially flavonoids, which also have a strong antioxidant effect by exerting multiple mechanisms such as inhibiting several enzymes, including antiphospholipid peroxidase, free radical scavengers, metal bonds, and xanthine oxidase (XOD). Statistical analysis results proved that green tea with a dose of 600 mg/kg BW could decrease the level of MDA in the liver by 84.87% (p 0.01) and reduce the activity of XOD by 35.36% (p 0.01). Taken together, green tea can improve liver histopathology.
Multi-drug resistance-1 (MDR-1) gene expression in MCF-7 cells after treated with doxorubicin-deoxyelephantopin combination and prediction of inhibitory activity against Pgp receptors with in silico DANIEL, DANIEL; FRENGKI, FRENGKI; JALALUDDIN, MUHAMMAD; SARI, WAHYU EKA; ROSMAIDAR, ROSMAIDAR; HASRIATI, HASRIATI; ZAKIAH, NONI
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.33237

Abstract

Doxorubicin chemotherapy has been a strong focus in breast cancer research. Side effects, toxicity and resistance have been extensively studied. One proposed solution to these issues that its combination with deoxyelephantopin. Deoxyelephantopin is known to be toxic in many cancer cells but safe in normal cells. IC50 of each compound were determined by using a MTT assay, and the MDR-1 gene mRNA expression were determined by using qPCR method, while the interaction of doxorubicin in combination with deoxyelephantonin on Pgp receptor were predicted by using an in silico approach. The IC50 of deoxyelephantopin was found to be 11.2 g/mL, while IC50 of doxorubicin was 448 nM IC50 values showed a deoxyelephantopin-doxorubicin combination was able to reduce MDR-1 expression by 19% compared to doxorubicin and IC50 values indicated that the combination formula reduced the expression by 15% over doxorubicin alone. The affinity of doxorubicin and deoxyelephantopin is -12.16 kcal/mol and -9.51 kcal/mol, respectively, while the affinity of doxorubicin after combine with deoxyelephantopin decreases from -12,16 kcal/mol to -11,25 kcal/mol due to the release of one Leu 221 hydrogen bond. The combination of doxorubicin with deoxyelephantopin is able to reduce expression and suppress the function of the Pgp protein.
Diversity of butterflies (Lepidoptera: Papilionoidea) in Universitas Samudra, Langsa SALWA, ZAKIYAH HANIFAH; SARI, HERLINA PUTRI ENDAH; PUTRI, KARTIKA APRILIA
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.39359

Abstract

Butterflies are one of the animals that have an important role in human life which is currently recorded totaling around 19,022 species in the world and 1,900 species found in Indonesia. Research on butterflies in the campus area in Aceh has not been done too much, so there is a need for research on butterfly diversity in the campus area, especially in Langsa, Aceh. The purpose of this study was to record the species and to analyze ecological factor of butterflies at Universitas Samudra. Sampling was conducted for 5 times once a week from December 2023-January 2024 by purposive random sampling using sweeping techniques and exploring method in 5 observation locations. The results found 30 species from 5 families with a total of 413 individuals. The most common family is family Nymphalidae as many as 15 species (50%) and the most common species found was Appias olferna with a total of 56 individuals. The data found were analyzed for ecological assessment. The result showed the diversity index with H' value of 2.17-2.82 classified as a medium, an evenness index with E value of 0.87-0.94 classified as high, and a dominance index with D value of 0.07-0.19 classified as low.
On locating-chromatic number of helm graph H_m FOR 10m28 WELYYANTI, DES; SUTANTO, DASA; YULIANTI, LYRA
Jurnal Natural Volume 24 Number 3, October 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i3.33190

Abstract

Let G = (V,E) be a connected graph and c be a k-coloring of G. The color class S_i of G is a set of vertices given color i, for 1 i k. Let = {S_1,S_2,,S_k} be an ordered partition of V(G). The color code of a vertex v $in$ (element) V(G) is defined as the ordered k--tuplec_ (v)=(d(v,S_1),d(v,S_2),...,d(v,S_k)),where d(v,S_i) = min{d(v,x)| x $in$ (element) S_i} for 1 i k. If distinct vertices have distinct color codes, then c is called a locating-coloring of G. The locating-chromatic number _L (G) is the minimum number of colors in a locating-coloring of G. This paper discusses the locating-chromatic number of helm graph H_m for 10 m 28. Helm graph H_m is constructed by adding some leaves to the corresponding vertices of wheels W_m, for m 3.
The validation of urea determination in saliva using optical urea biosensor with p-dimethylaminobenzaldehyde (DMAB) reagent ALDIANSYAH, TEUKU; SAFITRI, EKA; GINTING, BINAWATI; NAZARUDDIN, NAZARUDDIN; SUHUD, KHAIRI; SALEHA, SITTI; NURHAYATI, NURHAYATI; NAZARUDDIN, SALSABILLA LATANSA; AFIFI, MUHAMMAD RIDHO; NURHAIDA, NURHAIDA
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.41251

Abstract

The validation of urea determination in saliva using the biosensor method and the p-dimethylaminobenzaldehyde (DMAB) method has been successfully conducted. Anthocyanin compounds from Chatarantus roseus flowers were extracted using the maceration method with methanol as the solvent, yielding a total of 22.60% with a total concentration of 6.01 mg/L. The obtained extract was subjected to qualitative anthocyanin testing, showing a positive result was indicated by the formation of a reddish color and quantitative testing with the formation of a faded yellow color. The maximum wavelength ( max) of anthocyanin was 664 nm with an absorbance of 0.674. The saliva samples were obtained from three different ages i.e: children, teenagers, and adults. During the saliva collection procedure, participants were instructed to abstain from consuming any food or beverages, with the exception of water, for a minimum of 1 hour prior to sample collection. All samples were stored in a freezer at 4-8C until needed for analysis. Linearity test results were assessed using a calibration curve, yielding a coefficient of determination (R) of 0.978 with a sensitivity of 0.033 for the biosensor and an R of 0.975 with a sensitivity of 0.685 for DMAB. The limit of detection (LOD) values were determined as 7.203 10 M for the biosensor and 6.984 10 M for DMAB, while the limit of quantification (LOQ) values were 2.182 10 M and 2.116 10 M, respectively. Statistical analysis using a t-test showed tcalculated = 1.314, compared to ttable = 4.302, indicating that tcalculated ttable. This result suggests no statistically significant difference between the biosensor and DMAB methods, confirming that the biosensor method is comparable in performance to the DMAB method. Additionally, urea concentration measurements showed that adult samples exhibited the highest urea levels among the tested samples, which may indicate an association with potential health risks, including dental caries, kidney failure, and liver damage.
Assessing the water quality in the Timbalun river watershed, Padang City, West Sumatra, Indonesia HAR, RUSLI; TANJUNG, DENNY AKBAR; JAMARUN, NOVESAR
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.42009

Abstract

The purpose of this study is to assess water quality, specifically pH, conductivity, total dissolved solids (TDS), salinity, and turbidity. The research utilizes quantitative methods and covers 15 sampling points across the Timbalun River basin in Padang City, West Sumatra, Indonesia. Samples were measured based on several parameters, with three repetitions for accuracy. The testing took place from August to September 2024. The results showed that some water quality parameters, such as pH and total dissolved solids, met the standards outlined by Ministry of Health Regulation No. 2 of 2023. However, other parameters, including salinity, conductivity, and turbidity, did not meet the specified thresholds. It is essential to implement treatment measures to ensure the water meets the required standards for its intended use.
The role of Pediococcus pentosaceus IL13 in the fermentation of tuna waste, Euthynnus affinis RAMADHAN, ZULFA AULIA; SUNARTI, TITI CANDRA; MERYANDINI, ANJA
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.43091

Abstract

Processing tuna fish (Euthynnus affinis) produces wastes like heads, tails, and viscera, which can pollute the environment. However, this waste is nutrient-rich and can serve as a source of peptones, antimicrobials, and antioxidants. Align with Sustainable Development Goals (SDGs) through the zero-waste concept, which emphasizes reducing waste production, this study aims to analyze the role of Pediococcus pentosaceusIL13 in the fermentation of tuna fish waste. The fermentation process was conducted over 30 days using two types of fermentation, spontaneously and with the addition of P. pentosaceus IL13 culture. Bacterial dynamics, pH, protein content, and amino acid concentration were monitored to assess fermentation performance. The study found a reduction in total bacteria and lactic acid bacteria (LAB) along with an increase in pH in both types of fermentation over time. Maximum protein and free amino acid levels were observed on day 10. In the spontaneous fermentation, protein concentrations were 5.590.15% in the liquid phase and 20.051.19% in the solid phase. In the fermentation with added culture, protein concentrations were 6.590.57% in the liquid phase and 19.560.00% in the solid phase. Amino acid concentrations were 4821.11149.3 ppm for spontaneous fermentation and 6271.11377.1 ppm for fermentation with culture. The protein hydrolysates in the liquid phase have antibacterial activity against S. typhi.
The measurement of microbial air contamination index in the pulmonary ward, intensive care unit and pediatric intensive care unit at dr. Zainoel Abidin hospital, Aceh, Indonesia RINANDA, TRISTIA; SAKDIAH, SAKDIAH; RISTIANTI, RIMA; YUNIRA, VONNA; VANIA, FEBY; BUANA, ANDIKA CITRA
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.43797

Abstract

Nosocomial infections are one of the major problems in hospitals. Air is one source of nosocomial infections. Hospitals are filled with many patients, their families, and health workers daily. This large number of people allows the spread of various microorganisms through the air in droplets dispersed through breathing, talking, coughing or sneezing. This study used passive air sampling or settle plate method to measure the air quality in the pulmonary ward, Intensive Care Unit (ICU) and Pediatric Intensive Care Unit (PICU) at dr. Zainoel Abidin Hospital (RSUDZA). The air microbial contamination index was determined by counting the microbial colonies grown on Nutrient Agar and converted to CFU/m3 of air volume using the Polish Standard PN 89/Z-04008/08 Formula. The results showed that the air microbial contamination index in the pulmonary ward, ICU and PICU exceeded the maximum threshold mentioned in the decree of the Minister of Health of the Republic of Indonesia No.1204/SK/X/2004, which was 500 CFU/m3 for the pulmonary ward and 200 CFU/m3 for the Intensive Care Units. Although the findings of this study only represent the large microbial particles pulled by gravity, the high microbial contamination index of each unit trigger air quality alerts. Therefore, adequate air system management and periodic monitoring are needed to improve air quality in the wards and intensive care units at RSUDZA.
The effectiveness of naphthaleneacetic acid and kinetin on the development of plantlet book cuttings of Chrysanthemum ornamental plants BUDI, RAHMAD SETIA; PARAMUJI, MUJI; TANJUNG, DENNY AKBAR
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.42084

Abstract

The high demand for chrysanthemum flowers, coupled with the challenge of acquiring quality seeds in large quantities within a short timeframe, presents significant problems in this study. One potential solution is to propagate plants and utilize plant growth regulators to accelerate their development. Tissue culture techniques, which are essential in agriculture and biotechnology, are employed to produce new plants by isolating, developing, and duplicating specific plant cells or tissues in the laboratory. This study aims to assess the effects of two plant growth regulators Naphthalene Acetic Acid (NAA) and Kinetin on the growth and development of stem cuttings or nodes from ornamental chrysanthemum plants (chrysanthemum) in vitro using MS media. The research utilized a completely randomized design (CRD) factorial approach featuring two treatment factors: NAA and Kinetin. A total of nine treatment combinations were tested, with NAA concentrations of 0.5, 1.0, and 1.5 ml L-1, and Kinetin concentrations of 1, 2, and 3 ml L-1. Each treatment was repeated three times. Observations included measurements of plant height, leaf count, root count, and wet weight. The best results for each parameter were observed in treatment K3N2, which yielded a plant height of 30.73 mm and an average of 18.33 leaves. The optimal results for root count and wet weight were found in treatment K3N3, which produced an average of 13.83 roots and 3.57 grams, respectively. Overall, increasing the concentrations of NAA and Kinetin positively influenced all parameters evaluated.

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